Does having a good inventory management system have an effect on overall manufacturing efficiency?

Yes, definitely a good inventory management system will clearly even forecast your inventory need which can help you along with your own product knowledge. also make sure you use valid UPC or EAN numbers for your identifiers so you can have more orders in future from buyers who can easily get you through your barcode numbers. i suggest to minimum use the cheapest barcode option to increase your manufacturing efficiency from https://codesforamazon.com/product-category/barcodes/upc-barcodes/